1201345031 has 2 divisors, whose sum is σ = 1201345032. Its totient is φ = 1201345030.

The previous prime is 1201344997. The next prime is 1201345037. The reversal of 1201345031 is 1305431021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201345031 - 2¹⁰ = 1201344007 is a prime.

It is a super-2 number, since 2×1201345031² = 2886459767016781922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201344994 and 1201345012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201345037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600672515 + 600672516.

It is an arithmetic number, because the mean of its divisors is an integer number (600672516).

Almost surely, 2^1201345031 is an apocalyptic number.

1201345031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201345031 is an equidigital number, since it uses as much as digits as its factorization.

1201345031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1201345031 is about 34660.4245646241. The cubic root of 1201345031 is about 1063.0554511360.

Adding to 1201345031 its reverse (1305431021), we get a palindrome (2506776052).

The spelling of 1201345031 in words is "one billion, two hundred one million, three hundred forty-five thousand, thirty-one".